I thought I had missed this one but it turns out it was a re-read after all. A good old police procedural with a sci-fi and Scottish twist. Ken is riffing off the post 9/11 paranoia that informed his work for the next few books. I felt this one, on re-reading, had strong characters and a decent flow that meant I got through it in a day or so. The main plot twist was unexpected and it was just an entertaining read with a few things that will cause me some reflection in the near future. Pretty much what you need from a good sci-fi novel.